The discovery of the 118

chemical element A chemical element is a species of atoms that have a given number of protons in their nuclei, including the pure substance consisting only of that species. Unlike chemical compounds, chemical elements cannot be broken down into simpler sub ...

s known to exist as of 2022 is presented in chronological order. The elements are listed generally in the order in which each was first defined as the pure element, as the exact date of discovery of most elements cannot be accurately determined. There are plans to synthesize more elements, and it is not known how many elements are possible. Each element's name,

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

, year of first report, name of the discoverer, and notes related to the discovery are listed.

Periodic table of elements

Ancient discoveries

Modern discoveries

Graphics

References

External links

History of the Origin of the Chemical Elements and Their Discoverers
Last updated by Boris Pritychenko on March 30, 2004
Discovery of the Elements – The Movie – YouTube
(1:18)
The History Of Metals Timeline
A timeline showing the discovery of metals and the development of metallurgy. *—Eric Scerri, 2007, ''The periodic table: Its story and its significance,'' Oxford University Press, New York, {{Branches of chemistry Elements, discoveries

Timeline A timeline is a display of a list of events in chronological order. It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale represen ...